Chandra, Amreesh ; Pandey, Dhananjai (2003) Evolution of crystallographic phases in the system (Pb1-xCax)TiO3: a Rietveld study Journal of Materials Research, 18 (2). pp. 407-414. ISSN 0884-2914
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Official URL: http://journals.cambridge.org/action/displayAbstra...
Related URL: http://dx.doi.org/10.1557/JMR.2003.0052
Abstract
X-ray powder diffraction studies on (Pb1-xCax)TiO3 ceramic powders revealed the presence of superlattice reflections due to antiphase and inphase tilts of oxygen octahedra for x ≥ 0.421. Rietveld analysis of the powder x-ray diffraction data confirmed that the structure of (Pb1-xCax)TiO3 is orthorhombic with Pbnm space group and a-a-c+ tilt system for x ≥ 0.421. For compositions with 0 < x ≤ 0.416, the structure was tetragonal, and the tetragonality decreased with increasing Ca2+ content.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Cambridge University Press. |
| ID Code: | 88742 |
| Deposited On: | 29 Mar 2012 14:41 |
| Last Modified: | 29 Mar 2012 14:41 |
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